[sheepdog-users] backup images

[Hitoshi Mitake]

At Thu, 3 Apr 2014 16:26:39 +0800,
Liu Yuan wrote:
> 
> On Thu, Apr 03, 2014 at 12:15:31PM +0400, Maxim Terletskiy wrote:
> > Hi!
> > 
> > I need to backup whole cluster with possibility to restore some of
> > images later. Tried "dog cluster snapshot/load", correct me if I'm
> > wrong, but looks like it restores only whole cluster not separate
> > images.
> 
> Yes. Partial restore looks a reasonable feature, but currently no one has 
> time for it. You can add a bug for this feature.

Hi Maxim, you can add a request of the feature to our issue tracker
from the below URL:

https://bugs.launchpad.net/sheepdog-project/+bugs

Thanks,
Hitoshi

> 
> > 
> > I thought about snapshoting all images and do "qemu-img convert",
> > but it is not the best way. Without deduplication and compression
> > we'll need too much space to store backups.
> 
> I guess for now this is the only solution if you don't utilize cluster
> snapshot.
> 
> > Second way I see is "dog cluster snapshot" and "load" it to another
> > place(single sheep on backup server?). Not the best solution too,
> > we'll need to do twice "qemu-img convert" for every backup we'll
> > need to restore. And there are still question how to store multiple
> > copies of the same images in case if we need backups from last
> > couple of weeks.
> >
> > 
> > Is there any solutions?
> 
> We support incremental snapshot backup see
> 
> http://comments.gmane.org/gmane.comp.file-systems.sheepdog/6749
> 
> Thanks
> Yuan
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